The point (1, –5) is reflected across the y-axis. A coordinate plane.

What are its new coordinates?
(–1, 5)
(1, –5)
(–1, –5)
(1, 5)

(1, 5)

Step-by-step explanation:

Reflecting across the y-axis is the same thing as adding a negative to the y-value.

double negative 5 is the same thing as positive 5 so

(1, 5) is your answer

c

step-by-step explanation:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)